Cruise control in the Silverado helps to maintain constant speed and improve fuel efficiency on rough roads. However, it could stop working because of a few issues. How do I troubleshoot the 2011 Silverado cruise control that is not working?
The two main causes of a broken cruise control are a malfunctioning cruise control switch and a blown fuse. You may need their replacement to ensure smooth functioning. However, you may also need to check for speed sensor, vacuum leak, and brake pedal switch problems for quick fixation.
In this guide, you will explore the causes of faulty cruise control and ways to fix them.
Symptoms of a Faulty Cruise Control System
When your cruise control system is not working, you may experience the following symptoms.
- Inconsistent speed is common; your vehicle may accelerate or slow down unexpectedly. You may fail to maintain the required speed level, which may increase the accident risk.
- Your cruise control buttons may also fail to work properly. You may experience frequent cruise control system engagement or disengagement issues.
- The cruise control system may deactivate itself.
- Your engine may be overworking due to an issue with regulating the throttle system.
- Faulty cruise control can also cause brake issues.
- Warning lights are on your dashboard.
Symptoms of Bad Cruise Control Switch:
- Inconsistent speed control.
- Cruise control won’t engage.
- Unintended speed changes.
- Frequent disengagement.
- Jerky acceleration or deceleration.
- Dashboard warning light.
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Common Causes of Cruise Control Failure
There can be many reasons for a cruise control failure on your Silverado. But below are the 5 major problems that you must check for quick fixing of the issue.
- Faulty Switch
- Vacuum Leak
- Speed Sensor Issues
- Blown Fuse
- Brake Pedal Switch problem
2011 Silverado Cruise Control Not Working[ Problems & Solutions]
Problem 1: Faulty Switch
A faulty switch in the cruise control system on a 2011 Silverado can disrupt communication with the vehicle’s computer. It restricts the system from proper engagement or disengagement. It may make your cruise control behavior frustrating until you fix it.
Solution:
- First, locate the cruise control switch; in Silverado, it is usually located on the steering wheel.
- Now turn your Silverado OFF.
- Take a screwdriver and gently remove the switch cover.
- Inspect for debris accumulation or loose connections. Remove the debris if needed, or tighten the connection.
- But if you see the switch itself is faulty, remove it and mount a new compatible switch. I recommend GM Genuine Dark Titanium Cruise Control Switch for your Silverado.
- Test drive the vehicle after the replacement to make sure the issue has been resolved.
Problem 2: Vacuum Leak
A vacuum leak can disturb the engine’s air-fuel balance. The wrong signal from the vacuum system may make the engine’s performance unstable. It may make it hard for the cruise control system to maintain a consistent speed.
Solution:
- Locate vacuum lines connected to the engine intake manifold.
- Check the vacuum system hoses for cracks, loose connections, or damage.
- If there is no prominent damage, then take the soapy water along with the vacuum hose and try to detect the leak. If there is a leak, you will see the bubbles.
- First, try to repair the hose; if there is more than one leak, it is better to replace the damaged hose. I recommend Dorman 696-010 Engine Air Intake Hose for your 2011 Silverado.
- While replacing the hoses, ensure proper reconnection and sealing.
- Finally, take a test drive to confirm cruise control stability.
Problem 3: Speed Sensor Issues
The speed sensor ensures a correct speed measurement for better functioning of cruise control. If it is faulty, it may fail to provide accurate measurements, and ultimately, the cruise control performance is also affected. It is essential to fix it to prevent accidents quickly.
Solution:
- First, locate the speed sensor. In the 2011 Silverado, the speed sensor is usually found near the transmission. But for more accuracy, you can consult the user manual.
- Once it is located, the speed sensor inspects it for corrosion or damage.
- If it is dirty, clean it, but if it is damaged, you will need to replace it with a compatible speed sensor.
- After sensor replacement, reset the vehicle’s computer and clear the error codes, if any.
- Take a test drive to ensure the cruise control maintains a steady speed.
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Problem 4: Blown Fuse
The cruise control system needs a consistent power supply to perform its functions steadily. If its fuse is blown, it can disrupt the power supply to the cruise control system. Your cruise control system may fail to perform its functions. You should check for the fuse, and if blown, replace it for smooth functioning.
Solution:
- First, check for the fuse box; it is usually located under the dashboard or hood in the Silverado.
- On the fuse box, you will see information about the fuses. Read and then identify the cruise control system fuse.
- Inspect it for damage; if it is blown, gently remove it.
- Now, mount a new compatible fuse and close the fuse box.
- Start your vehicle and take a 3 to 4-mile drive to confirm the cruise control problem is fixed.
Problem 5: Bake Pedal Switch Problem
The brake pedal switch is responsible for detecting the brake pedal movements to tell the cruise control system to maintain speed according to requirements. But if the switch fails, it also fails to communicate the brake pedal switch movements to the cruise control system. So, you may experience poor cruise control performance.
Solution:
- Check for the brake pedal switch under your Silverado dashboard.
- First, check its wires and ensure there are no loose connections or broken wires. If connections are loose, tighten them or repair the broken wires.
- But if the switch itself is damaged, you should replace it.
- Remove it gently and then mount the new switch in its place. Make the right connections when connecting the switch.
- After the switch replacement, start your car to take a drive to confirm the issue solution.
Silverado Cruise Control Won’t Set
It may not work due to several problems, but some common problems include wiring issues, faulty switches, or throttle position sensor issues. You should check for these issues when cruise control isn’t set.
Solution:
- First, check for wiring problems. Try to find the broken wires or the loose connections. Replace or repair the broken wire and then tighten all the loose connections.
- If a problem still exists, check for the switch and ensure it is okay. If it is faulty, you will need to replace it.
- Also, check for the throttle position sensor; if it is damaged, replace it.
Cruise Control Not Turning On
It may happen due to different issues with your vehicle. But a blown fuse and malfunctioning speed sensor are the most common issues when cruise control is not turned on.
Solution:
- Check for the fuse in your vehicle’s fuse box; if blown, replace it.
- But if the problem still exists, check the speed sensor. Ensure it is working fine; if the sensor is damaged, replace it with a compatible sensor.
- After replacement, a driver is to ensure the problem is fixed.
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Seeking Professional Help
Fixing cruise control problems can be challenging. You should try the above solutions, but if the problem is still unsolved, do not waste your time and call professional help. Professional people know more about such issues and can assist you in fixing them quickly and permanently.
Frequently Asked Questions (FAQs):
2011 Silverado cruise control fuse location
In the 2011 Silverado, the cruise control fuse is located in the fuse box. The fuse box in Silverado is located under the hood. You can read the instructions on the fuse box to identify the cruise control fuse’s exact location.
How long does it take to fix a cruise control system?
There is no exact time because it depends on factors such as the problem and the mechanical skills of the worker. If you are a skilled person and can quickly identify the problem, you can fix it in a few hours. But if you are not very experienced, it can be a day or more than a day.
Can I drive without cruise control?
The cruise control is an additional safety feature to ensure more control over speed maintenance. It is not an essential feature; if you want to drive without cruise control, there is not much of an issue.
Can a faulty cruise control system cause any safety issues?
Yes, it can be hazardous because a faulty cruise control system fails to maintain an accurate speed. You may experience sudden fast or slow speeds, which may cause an accident on the road.
Conclusion
The sophisticated feature of the cruise control system aids drivers in maintaining their speed. It ensures extended safety, but due to some issues, your 2011 Silverado cruise control may stop working. You can fix it if you identify its cause. Once you identify the cause, fix it accordingly.